CN201113548Y - Back-up power - Google Patents
Back-up power Download PDFInfo
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- CN201113548Y CN201113548Y CNU2007201759927U CN200720175992U CN201113548Y CN 201113548 Y CN201113548 Y CN 201113548Y CN U2007201759927 U CNU2007201759927 U CN U2007201759927U CN 200720175992 U CN200720175992 U CN 200720175992U CN 201113548 Y CN201113548 Y CN 201113548Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/10—Applications of fuel cells in buildings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model relates to a back-up power supply, which comprises a main electric network interface device and a fuel cell device, wherein, the main electric network interface device comprises an electricity state monitoring device (3); the fuel cell device comprises a hydrogen-oxygen fuel cell (1) and a hydrogen bottle (8) and an oxygen bottle (9) which are respectively connected with the hydrogen-oxygen fuel cell (1), wherein, the fuel cell device also comprises a supplementary fuel device which comprises a water electrolysis device (7), a hydrogen charging device (10) and an oxygen charging device (11); the hydrogen charging device (10) is connected between the water electrolysis device (7) and the hydrogen bottle (8); the oxygen charging device (11) is connected between the water electrolysis device (7) and the oxygen bottle (9). The back-up power supply has the advantage of providing an environment-friendly, light and maintenance-free back-up power supply.
Description
Technical field
The utility model relates to a kind of back-up source.
Background technology
Because power supply grid can't be avoided power failure occurring, therefore in many important places, as communication apparatus, information centre's machine room etc., power consumption equipment still can operate as normal when power failure occurring to guarantee electrical network to need the configuration stand-by power supply.The short-term operation stand-by power supply is based on chargeable secondary cell at present, and electrical network is given secondary cell charge when operate as normal; When electrical network broke down, standby secondary cell was started working.
Advantage such as low in conjunction with cost, that self-discharge rate is little, lead-acid battery become the most frequently used stand-by power supply battery at present.This battery has performance standby and recycling, and has very strong voltage stabilizing power supply capacity.But lead-acid battery also has its shortcoming, and is big as quality, regularly need carry out charge and discharge maintenance, make and reclaim improper meeting and cause serious environmental pollution etc., therefore necessary selection is efficiently a kind of, safeguards the power supply of simple and environmental protection, fuel cell can contaminated solution etc. problem.For example hydrogen oxygen fuel cell is to produce electromotive force by carrying out electrochemical reaction by proton exchange membrane (PEM) between hydrogen and the oxygen; generate water; be a kind of clean energy resource completely, utilizing fuel cell to substitute the battery with contamination type is a kind of trend of environmental protection.
The existing back-up source that adopts fuel cell, do not design the postcombustion device, such back-up source can only use by external source of the gas, need artificial postcombustion, this is for the insufficient area of source of the gas, or the area that is not easy to transport source of the gas, the maintenance of such power supply unit, communication base station etc. is very inconvenient.
The utility model content
The purpose of this utility model provide a kind of can lack under the situation that source of the gas replenishes still can operate as normal back-up source.
The utility model provides a kind of back-up source, and this back-up source comprises main electrical network interface equipment and fuel cell system, and main electrical network interface equipment comprises the power state monitoring device; Fuel cell system comprises hydrogen oxygen fuel cell, the hydrogen cylinder that is connected with hydrogen oxygen fuel cell respectively and oxygen cylinder, wherein, fuel cell system also comprises the postcombustion device, described postcombustion device comprises apparatus for electrolyzing, hydrogen aerating device and oxygen aerating device, the hydrogen aerating device is connected between apparatus for electrolyzing and the hydrogen cylinder, and the oxygen aerating device is connected between apparatus for electrolyzing and the oxygen cylinder.
Apparatus for electrolyzing can be isolated hydrogen and oxygen by brine electrolysis in the back-up source that the utility model provides, and the hydrogen of generation and oxygen are conveyed into hydrogen aerating device and oxygen aerating device respectively, and and then sends into hydrogen cylinder and oxygen cylinder respectively.Like this, back-up source does not just need extraneous maintenance, so-called extraneous maintenance be meant the normal descendant of main power system restoration for refuelling battery or postcombustion battery because the fuel that loses during power work in support, the back-up source that the utility model provides does not need refuelling battery or artificial postcombustion, and this is very significant for the maintenance that is arranged on the power supply unit that lacks the reaction gas source of the gas or be not easy to replenish the area of source of the gas, communication base station etc.In addition, hydrogen-oxygen type PEM fuel battery power density is big, provides equal electric power system structure significantly to reduce than the lead-acid battery quality, makes the quality of back-up source reduce greatly, be convenient to the work such as installation in zone with a varied topography, and eliminated the potential threat of lead-acid battery environment.
Description of drawings
What Fig. 1 showed is the structure chart of back-up source of the present utility model;
What Fig. 2 showed is the structure chart of a preferred embodiment of back-up source of the present utility model;
What Fig. 3 showed is the structure chart of another preferred embodiment of back-up source of the present utility model.
Embodiment
Below, the utility model is described in more detail in conjunction with the accompanying drawings.
Referring to Fig. 1, the back-up source that the utility model provides comprises main electrical network interface equipment and fuel cell system, and main electrical network interface equipment comprises power state monitoring device 3; Fuel cell system comprises hydrogen oxygen fuel cell 1, the hydrogen cylinder 8 that is connected with hydrogen oxygen fuel cell 1 respectively and oxygen cylinder 9, wherein fuel cell system also comprises the postcombustion device, described postcombustion device comprises apparatus for electrolyzing 7, hydrogen aerating device 10 and oxygen aerating device 11, hydrogen aerating device 10 is connected between apparatus for electrolyzing 7 and the hydrogen cylinder 8, and oxygen aerating device 11 is connected between apparatus for electrolyzing 7 and the oxygen cylinder 9.
Wherein, main electrical network interface equipment is connected with main electric device 2, main electric device 2 provides the device of main electric power, when main electric device 2 operate as normal, back-up source is in maintenance state, to power consumption equipment 5 output electric energy, when main electric device 2 is undesired, back-up source starts, and externally exports electric energy.
Main electrical network interface equipment comprises power state monitoring device 3, and power state monitoring device 3 comprises can monitor main electric power electric parameter control unit, for example voltage sensor, current sensor etc.When main electric power is undesired, main electric power electric parameter such as electric current, voltage etc. can reduce suddenly, power state monitoring device 3 is opened hydrogen cylinder 8 and oxygen cylinder 9 after monitoring this variation, and hydrogen and oxygen are sent into respectively in the hydrogen oxygen fuel cell 1 and reacted, externally power supply of hydrogen oxygen fuel cell 1 beginning.When main power recovery just often, main electric power electric parameter is also recovered normally, power state monitoring device 3 cuts out hydrogen cylinder 8 and oxygen cylinder 9 after monitoring this variation, hydrogen oxygen fuel cell 1 stops external power supply.At this moment, can utilize main electric power to apparatus for electrolyzing 7 power supplies, thereby carry out the preparation of hydrogen and oxygen.
Main electrical network interface equipment also comprises Backup Power Switch 4, is used for the unlatching and the shutoff of back-up source output electric energy.
Hydrogen oxygen fuel cell 1 is the reaction member of hydrogen and oxygen, and hydrogen and oxygen are sent into hydrogen oxygen fuel cell 1 as reaction gas and carried out electrochemical reaction at PEM (proton exchange membrane), produces electromotive force, generates water.The water that is generated can be recycled by apparatus for electrolyzing 7, describes hereinafter.Hydrogen oxygen fuel cell 1 can be included as the fuel cell pack of an individual fuel cells or the series connection of a plurality of individual fuel cells, is preferably fuel cell pack.
When hydrogen oxygen fuel cell 1 output electric energy, more meet the needs of power consumption equipment 5 for making electric energy, can export burning voltage according to the requirement of power consumption equipment 5, this just need connect a power inverter at the output of hydrogen oxygen fuel cell 1.Therefore, preferably, described fuel cell system also comprises power inverter 15, the input of this power inverter 15 is connected with the power output end of hydrogen oxygen fuel cell 1, the act as a fuel electric energy output end of battery apparatus of output is connected with the feeder ear of power consumption equipment 5, converts the electric energy of hydrogen oxygen fuel cell 1 to burning voltage that power consumption equipment requires, and this burning voltage can be 12V-220V, as the communication back-up source, be preferably 48V.This power inverter 15 can be the DC-DC transducer.
Hydrogen cylinder 8 and oxygen cylinder 9 are closed containers that can stored-gas known in those skilled in the art, for example can adopt the gas storage alloy to make.Hydrogen cylinder 8 and oxygen cylinder 9 are used for hydrogen that apparatus for electrolyzing 7 electrolysis are come out and oxygen and lay in and use when treating operation of fuel cells.The inlet of hydrogen cylinder 8 is connected to hydrogen aerating device 10, and outlet is connected to the anodic gas inlet of hydrogen oxygen fuel cell 1, and the inlet of oxygen cylinder 9 is connected to oxygen aerating device 11, and outlet is connected to the cathode gas inlet of hydrogen oxygen fuel cell 1.
As a kind of execution mode of the present utility model, described fuel cell system is except above-mentioned hydrogen oxygen fuel cell 1, hydrogen cylinder 8 and oxygen cylinder 9, also comprise hydrogen valve 12 and oxygen valve 13, hydrogen valve 12 is connected between hydrogen cylinder 8 and the hydrogen oxygen fuel cell 1, hydrogen valve 12 control hydrogen are sent into flow, time and the pressure and other parameters of hydrogen oxygen fuel cell 1, oxygen valve 13 is connected between oxygen cylinder 9 and the hydrogen oxygen fuel cell 1, and oxygen valve 13 control oxygen are sent into flow, time and the pressure and other parameters of hydrogen oxygen fuel cell 1.
For ease of the conveying of gas, described hydrogen valve 12 and oxygen valve 13 can be pressure-reducing valve, electromagnetically operated valve, flow control valve etc., preferably adopt the mass flow control valve, have the benefit of accurate control gaseous flow and pressure.Hydrogen valve 12 or oxygen valve 13 all can be used for the parameters such as gas flow that overall control flows into hydrogen oxygen fuel cell 1 for one or more, and a plurality of valves can be controlled different parameters respectively, as pressure, flow etc.
When back-up source is not worked, back-up source is in stand-by state and himself is safeguarded, for example can adopt the mode of the timing activation backup battery that hereinafter will describe, described hydrogen valve 12 and oxygen valve 13 can adopt the structure of the such two-stage valve of high pressure valve and low pressure valve.Adopt the benefit of two-stage valve to be, needed hydrogen and oxygen can directly enter hydrogen oxygen fuel cell 1 by low pressure valve from other gas circuit in the maintenance, and needn't frequently open hydrogen cylinder 8 and oxygen cylinder 9, needn't frequently detect the state of hydrogen cylinder 8 and oxygen cylinder 9 at stand-by state, also needn't make hydrogen cylinder 8 and oxygen cylinder 9 regular inflation and venting, reduce the action step of hydrogen cylinder 8 and oxygen cylinder 9, increased the reliability of hydrogen cylinder 8 and oxygen cylinder 9.And, flow, time and pressure and other parameters that the two-stage valve can more accurate control gaseous.
Therefore, as shown in Figure 2, preferably, described hydrogen valve 12 can comprise high pressure hydrogen valve 21 and low pressure hydrogen valve 22, and the anodic gas entry sequence of hydrogen cylinder 8, high pressure hydrogen valve 21, low pressure hydrogen valve 22 and hydrogen oxygen fuel cell 1 is communicated with; Described oxygen valve 13 can comprise hyperbaric oxygen air valve 27 and low oxygen valve 28, and the cathode gas entry sequence of oxygen cylinder 9, hyperbaric oxygen air valve 27, low oxygen valve 28 and hydrogen oxygen fuel cell 1 is communicated with.
Wherein high pressure hydrogen valve 21, hyperbaric oxygen air valve 27 can be pressure-reducing valve, electromagnetically operated valve, flow control valve etc., preferably adopt the electronic control pressure reducing valve, under the function that realizes the reduction gas pressure, have the benefit that convenience is controlled, cost is low.Low pressure hydrogen valve 22, low oxygen valve 28 can be pressure-reducing valve, electromagnetically operated valve, flow control valve etc., preferably adopt the mass flow control valve, have the benefit of accurate control gaseous flow and pressure.
Described postcombustion device comprises apparatus for electrolyzing 7, hydrogen aerating device 10 and oxygen aerating device 11.
Apparatus for electrolyzing 7 is to utilize electric energy water electrolysis to be become the device of hydrogen and oxygen, have hydrogen outlet and oxygen outlet, have electrolysis tank and tank, electrolysis tank is placed electrolyte or electrolyte, electrolyte or electrolyte can adopt NaOH, proton exchange membrane etc., as a kind of execution mode of the present utility model, adopt proton exchange membrane as electrolyte, such benefit is that reaction speed is fast, generation gas is pure.
The water of 7 electrolysis of apparatus for electrolyzing can be the water from the back-up source outside, also can be the water that is produced by hydrogen oxygen fuel cell 1 burning from back-up source inside.Preferably, adopt hydrogen oxygen fuel cell 1 reaction and the water of generation, can realize reusing the function of back-up source like this, can also save water resources, realize non-maintaining function.Apparatus for electrolyzing 7 comprises at least one tank.
In this case, described postcombustion device also comprises apparatus for recovering 16, this apparatus for recovering 16 is communicated with the generation water out of hydrogen oxygen fuel cell 1 and the tank in the apparatus for electrolyzing 7 respectively, and the water that hydrogen oxygen fuel cell 1 reaction is produced is transported in the apparatus for electrolyzing 7.Apparatus for recovering 16 can be any liquid container that has liquid driving device, has input and output, wherein the input of apparatus for recovering 16 links to each other with the generation water out of hydrogen oxygen fuel cell 1, the water that produces to receive hydrogen oxygen fuel cell 1 reaction, the output of apparatus for recovering 16 links to each other with the tank of apparatus for electrolyzing 7, for apparatus for electrolyzing 7 provides needed water.
When back-up source need replenish hydrogen-oxygen fuel by water electrolysis, can adopt various electric energy, but the burning voltage that the electric energy of brine electrolysis is different according to electrolytical different needs, be generally low-voltage direct electric power, therefore described postcombustion device also comprises electrolysis power device 6, is connected to the feeder ear of apparatus for electrolyzing 7.This electrolysis power device 6 can be additional power source or come the electric energy of autonomous electric device 2, when main electric device 2 can operate as normal, as a kind of execution mode of the present utility model, with the power supply source of main electric device 2 as apparatus for electrolyzing 7 usefulness.Therefore, this electrolysis power device 6 is actually a kind of power inverter, is connected to main electric device 2, makes the parameters such as voltage of winner's electric power satisfy the requirement input of apparatus for electrolyzing 7, as 2V-12V.
Hydrogen aerating device 10 and oxygen aerating device 11 are to receive the hydrogen of apparatus for electrolyzing 7 electrolysis generation and the unit of oxygen, described hydrogen and oxygen are admitted to hydrogen cylinder 8 and oxygen cylinder 9 respectively both have similar structure, and both have similar structure hydrogen aerating device 10 and oxygen aerating device 11.
Have at above-mentioned hydrogen valve 12 and oxygen valve 13 under the situation of structure of two-stage valve, hydrogen aerating device 10 is as follows with the structure of oxygen aerating device 11: described hydrogen aerating device 10 comprises first gas and water separator 17, first low-pressure supercharging device 18, hydrogen storage vessel 19 and the first high pressure supercharging device 20 that is connected in turn, the hydrogen that apparatus for electrolyzing 7 produces is transported to first gas and water separator, 17, the first high pressure supercharging devices 20 and is connected to hydrogen cylinder 8; Described oxygen aerating device 11 comprises second gas and water separator 23 that connects in turn, second low-pressure supercharging device 24, the Oxygen storage container 25 and the second high pressure supercharging device 26, the oxygen delivery that water electrolyzer 7 produces is to second gas and water separator 23, the second high pressure supercharging device 26 is connected to oxygen cylinder 9, this back-up source also comprises hydrogen air feed branch road 32 and oxygen air feed branch road 33, and hydrogen storage vessel 19 and Oxygen storage container 25 directly pass through hydrogen air feed branch road 32 with hydrogen and oxygen, low pressure hydrogen valve 22 and oxygen air feed branch road 33, low oxygen valve 28 is transported in the hydrogen oxygen fuel cell 1.
First gas and water separator 17, second gas and water separator 23 can be moisture separator, pneumatic filter or the like, and hydrogen that brine electrolysis obtains and oxygen are respectively by promptly obtaining pure hydrogen and oxygen behind first gas and water separator 17 and second gas and water separator 23.
Above-mentioned pure hydrogen and oxygen are respectively by entering hydrogen storage vessel 19 and Oxygen storage container 25 after first low- pressure supercharging device 18,24 superchargings of second low-pressure supercharging device.First low-pressure supercharging device 18, second low-pressure supercharging device 24 can be selected the low-pressure charging pump for use, and gas is pressurized to 1MPa-5MPa by a small margin.
After back-up source work or other need be to the situation of hydrogen cylinder 8 and oxygen cylinder 9 inflations, oxygen in hydrogen in the hydrogen storage vessel 19 and the Oxygen storage container 25 can be sent into hydrogen cylinder 8 and oxygen cylinder 9 respectively by the first high pressure supercharging device 20 and the second high pressure supercharging device 26, wherein the first high pressure supercharging device 20 and the second high pressure supercharging device 26 can be selected high-pressure booster for use, and gas boosting is arrived 15MPa-30MPa.
The utility model has related to complicated control system, have parts such as gas circuit, water route and circuit in the system at least, therefore, for the control that makes system more orderly, described postcombustion device also comprises battery management device 14, and described battery management device 14 comprises master controller, gas circuit administration module, water route administration module, Circuit management module and battery status monitor.
Master controller is used for totally controlling the co-ordination between each administration module; Master controller connects the data communication interface of gas circuit administration module, water route administration module, Circuit management module and battery status monitor, obtains various data, as gas pressure, water storage capacity and measurement value sensor etc., and gives control corresponding.
The gas circuit administration module is connected to hydrogen cylinder 8, oxygen cylinder 9 and hydrogen valve 12 and oxygen valve 13 (or being connected to high pressure hydrogen valve 21, low pressure hydrogen valve 22 and hyperbaric oxygen air valve 27 and low oxygen valve 28); The gas circuit administration module comprises the pressure sensor of measurement gas pressure, flow sensor, data communication interface and the microcontroller of measurement gas flow, be used for hydrogen cylinder 8, oxygen cylinder 9 and the hydrogen storage vessel 19 that the transducer according to measurement gas pressure records, the air pressure in the Oxygen storage container 25, the gas circuit parameter of control whole system is as gas pressure, gas flow, valve event time etc.
The water route administration module is connected to apparatus for recovering 16, apparatus for electrolyzing 7; The water route administration module comprises temperature sensor, level sensor, data communication interface and microcontroller, is used to control the water route parameter of whole system, as water storage capacity, water supply rate, water recovery rate, water recovery time etc.
The Circuit management module is connected to apparatus for electrolyzing 7, power state monitoring device 3; The Circuit management module comprises voltage sensor, current sensor, data communication interface and microcontroller, is used to control the electric parameter of whole system, as voltage data, current data, electric switch operate time etc.
The battery status monitor is connected to hydrogen oxygen fuel cell 1, is used to monitor the state of hydrogen oxygen fuel cell 1, as the voltage of output voltage, output current, hydrogen oxygen fuel cell 1, internal resistance or the like.The battery status monitor comprises voltage sensor, current sensor, touring measuring circuit, data communication interface and the microcontroller of measuring individual fuel cells voltage, individual fuel cells internal resistance, cell output voltage, battery output current.
When hydrogen oxygen fuel cell 1 was not worked, hydrogen oxygen fuel cell 1 was in stand-by state and need safeguards it.A characteristic of hydrogen oxygen fuel cell 1 is if be in halted state for a long time, it is dry that the proton exchange membrane of hydrogen oxygen fuel cell 1 will become, when 1 work of needs hydrogen oxygen fuel cell, start hydrogen oxygen fuel cell 1 and need the regular hour, the load capacity of hydrogen oxygen fuel cell 1 can not satisfy the needs of power consumption equipment in the time of this section startup, power consumption equipment 5 essence are in off-position, so just can't realize the reserve function of back-up source.The effective wetting that be to keep proton exchange membrane, the load capacity when strengthening hydrogen oxygen fuel cell 1 and starting can have the method for some wetting proton exchange membrane.
A kind of method is to adopt the mode of activation load.As shown in Figure 2, described back-up source also comprises activation load device 29, this activation load device 29 comprises load management module and load (not shown), the load management module receives the voltage and the internal resistance of the hydrogen oxygen fuel cell 1 that the battery status monitor monitors arrives in the battery management device 14, and load is connected to the power output end of hydrogen oxygen fuel cell 1.Comprise timer and load controller (not shown) in the load management module, be used to make regularly offered load of fuel cell, the concrete enforcement of this respect can referring to the applicant in first to file, Chinese application number is 200610127862.6.
Described load controller is connected with battery management device 14 with load, is used for the resistance size of control load; Comprise control program in the described load controller, load controller reduce gradually by the resistance of carrying out this control program control load or between big resistance and less resistance alternate, the time of implementation of described control program equals the described 29 soak time cycles of predetermined activation load device.Like this, the resistance size of load can change, thereby can simulate the need for electricity of power consumption equipment 5.
The resistance of described control load reduce gradually or between big resistance and less resistance alternate be by the activation rule control of hydrogen oxygen fuel cell 1, can guarantee the abundant hydration of the proton exchange membrane of hydrogen oxygen fuel cell 1 like this, guarantee discharge performance.
Activation stage enters idle phase after finishing, and closes low pressure hydrogen by-pass valve control 22, low oxygen by-pass valve control 28 and load 36 this moment, and opens electrolysis power device 6 and water electrolyzer 7, is hydrogen storage vessel 19 and Oxygen storage container 25 make-up gas.
Another kind of mode is a pressure controling mode.As shown in Figure 3, described back-up source also comprises Hydrogen Vapor Pressure controller 30, Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure controller 31, oxygen pressure by-pass valve control 35; Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure by-pass valve control 35 are separately positioned in hydrogen air feed branch road 32 and the oxygen air feed branch road 33.Hydrogen air feed branch road 32 is set up the connection of hydrogen storage vessel 19 to low pressure hydrogen valve 22 inputs; Oxygen air feed branch road 33 is set up the connection of Oxygen storage container 25 to low oxygen valve 28 inputs.
Can control hydrogen air feed branch road 32 and oxygen air feed branch road 33 supply gas pressures respectively by Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure by-pass valve control 35, Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure by-pass valve control 35 have the control input end, can be electromagnetic pressure valve.
Hydrogen Vapor Pressure controller 30 and oxygen pressure controller 31 are connected the control input end of Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure by-pass valve control 35 respectively, be used to control the output pressure of Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure by-pass valve control 35, realize control thus hydrogen air feed branch road 32 and oxygen air feed branch road 33 supply gas pressures.Hydrogen Vapor Pressure controller 30 and the control unit of oxygen pressure controller 31 for constituting by microcontroller, can the control gaseous flow velocity, the pressure and other parameters of valve, Hydrogen Vapor Pressure controller 30 and oxygen pressure controller 31 are realized control to hydrogen air feed branch road 32 and oxygen air feed branch road 33 supply gas pressures according to these parameters.The input of Hydrogen Vapor Pressure controller 30 and oxygen pressure controller 31 is connected respectively to battery management device 14, export corresponding control signal according to what battery management device 14 was measured as data such as output voltage, output current, hydrogen oxygen fuel cell 1 voltage, hydrogen oxygen fuel cell 1 internal resistances, in order to the output pressure of control Hydrogen Vapor Pressure by-pass valve control 34 and oxygen pressure by-pass valve control 35.
Present embodiment can be taked the method for monitoring in real time, by the battery status that obtains by condition tester for battery 40, as hydrogen oxygen fuel cell 1 open circuit voltage data, hydrogen oxygen fuel cell 1 internal resistance data etc., formulate hydrogen air feed branch road 32 and oxygen air feed branch road 33 supply gas pressures, the output of promptly controlling Hydrogen Vapor Pressure controller 30 and oxygen pressure controller 31 realizes.Utilize the characteristic of the slow permeated hydrogen of proton exchange membrane, generate water thus in its cathode reaction and realize wetting to membrane electrode.The difference of adjusting hydrogen air feed branch road 32 and oxygen air feed branch road 33 supply gas pressures can realize the adjusting to hydrogen permeate speed, usually hydrogen air feed branch road 32 and oxygen air feed branch road 33 supply gas pressures are adjusted to the 2MPa vicinity, supply gas pressure difference is controlled at the 50kPa-500kPa place, be preferably 200kPa, wherein hydrogen air feed branch road 32 supply gas pressures are greater than oxygen air feed branch road 33 supply gas pressures, increase pressure difference will increase hydrogen permeate speed, promptly increase wetness degree.
Claims (10)
1, a kind of back-up source, this back-up source comprise main electrical network interface equipment and fuel cell system, and main electrical network interface equipment comprises power state monitoring device (3); Fuel cell system comprises hydrogen oxygen fuel cell (1), the hydrogen cylinder (8) that is connected with hydrogen oxygen fuel cell (1) respectively and oxygen cylinder (9), it is characterized in that, fuel cell system also comprises the postcombustion device, described postcombustion device comprises apparatus for electrolyzing (7), hydrogen aerating device (10) and oxygen aerating device (11), hydrogen aerating device (10) is connected between apparatus for electrolyzing (7) and the hydrogen cylinder (8), and oxygen aerating device (11) is connected between apparatus for electrolyzing (7) and the oxygen cylinder (9).
2, back-up source according to claim 1, it is characterized in that, described fuel cell system also comprises power inverter (15), the input of this power inverter (15) is connected with the electric energy output end of hydrogen oxygen fuel cell (1), the act as a fuel electric energy output end of battery apparatus of output.
3, back-up source according to claim 1 is characterized in that, described postcombustion device also comprises apparatus for recovering (16), and this apparatus for recovering (16) is communicated with the generation water out and the apparatus for electrolyzing (7) of hydrogen oxygen fuel cell (1).
4, back-up source according to claim 1 is characterized in that, described postcombustion device also comprises electrolysis power device (6), and this electrolysis power device (6) is connected to the feeder ear of apparatus for electrolyzing (7).
5, back-up source according to claim 1, it is characterized in that, described fuel cell system also comprises hydrogen valve (12) and oxygen valve (13), hydrogen valve (12) is connected between hydrogen cylinder (8) and the hydrogen oxygen fuel cell (1), and oxygen valve (13) is connected between oxygen cylinder (9) and the hydrogen oxygen fuel cell (1).
6, back-up source according to claim 5, it is characterized in that, described hydrogen valve (12) comprises high pressure hydrogen valve (21) and low pressure hydrogen valve (22), hydrogen cylinder (8), high pressure hydrogen valve (21), low pressure hydrogen valve (22) and hydrogen oxygen fuel cell (1) order are communicated with, described oxygen valve (13) comprises hyperbaric oxygen air valve (27) and low oxygen valve (28), and oxygen cylinder (9), hyperbaric oxygen air valve (27), low oxygen valve (28) and hydrogen oxygen fuel cell (1) order are communicated with.
7, back-up source according to claim 6 is characterized in that, this back-up source also comprises hydrogen air feed branch road (32) and oxygen air feed branch road (33);
Hydrogen aerating device (10) comprises first gas and water separator (17), first low-pressure supercharging device (18), hydrogen storage vessel (19) and the first high pressure supercharging device (20) that connects in turn, the hydrogen that apparatus for electrolyzing (7) produces is transported to first gas and water separator (17), and the first high pressure supercharging device (20) is connected to hydrogen cylinder (8);
Oxygen aerating device (11) comprises second gas and water separator (23), second low-pressure supercharging device (24), Oxygen storage container (25) and the second high pressure supercharging device (26) that connects in turn, the oxygen delivery that water electrolyzer (7) produces is to second gas and water separator (23), and the second high pressure supercharging device (26) is connected to oxygen cylinder (9);
Described hydrogen storage vessel (19) and Oxygen storage container (25) directly are transported to hydrogen and oxygen in the hydrogen oxygen fuel cell (1) by hydrogen air feed branch road (32), low pressure hydrogen valve (22) and oxygen air feed branch road (33), low oxygen valve (28) respectively.
8, according to each described back-up source of claim 1～7, it is characterized in that, described back-up source also comprises activation load device (29), this activation load device (29) comprises load management module and load, load is connected to the power output end of hydrogen oxygen fuel cell, comprises timer and load controller in the load management module.
9, back-up source according to claim 7 is characterized in that, described back-up source also comprises Hydrogen Vapor Pressure controller (30), Hydrogen Vapor Pressure by-pass valve control (34) and oxygen pressure controller (31), oxygen pressure by-pass valve control (35); Hydrogen Vapor Pressure by-pass valve control (34) and oxygen pressure by-pass valve control (35) are separately positioned in hydrogen air feed branch road (32) and the oxygen air feed branch road (33).
10, back-up source according to claim 1 is characterized in that, described postcombustion cell apparatus also comprises apparatus for recovering (16), hydrogen valve (12), oxygen valve (13) and battery management device (14);
Apparatus for recovering (16) is communicated with the generation water out of hydrogen oxygen fuel cell (1) and the tank inlet of apparatus for electrolyzing (7);
Hydrogen valve (12) is connected between hydrogen cylinder (8) and the hydrogen oxygen fuel cell (1), and oxygen valve (13) is connected between oxygen cylinder (9) and the hydrogen oxygen fuel cell (1);
Described battery management device (14) comprises master controller, gas circuit administration module, water route administration module, Circuit management module and battery status monitor; Master controller connects gas circuit administration module, water route administration module, Circuit management module and battery status monitor; The gas circuit administration module is connected to hydrogen cylinder (8), oxygen cylinder (9) and hydrogen valve (12) and oxygen valve (13); The water route administration module is connected to apparatus for recovering (16), apparatus for electrolyzing (7); The Circuit management module is connected to apparatus for electrolyzing (7), power state monitoring device (3); The battery status monitor is connected to hydrogen oxygen fuel cell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201759927U CN201113548Y (en) | 2007-09-14 | 2007-09-14 | Back-up power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201759927U CN201113548Y (en) | 2007-09-14 | 2007-09-14 | Back-up power |
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| CN201113548Y true CN201113548Y (en) | 2008-09-10 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102934274A (en) * | 2010-04-20 | 2013-02-13 | 赫利恩 | Device for storing and restoring electrical energy |
| CN103001264A (en) * | 2011-09-08 | 2013-03-27 | 陈温乐 | Automatic charging device for electric vehicle battery module |
| CN103498763A (en) * | 2013-10-17 | 2014-01-08 | 浙江工商大学 | Energy-storage standby power generating device |
| CN105720283A (en) * | 2016-04-07 | 2016-06-29 | 北京建筑大学 | Fuel cell hybrid power system and working method thereof |
| CN106848347A (en) * | 2017-02-14 | 2017-06-13 | 北京东方华氢科技有限公司 | A kind of electric power system and the control method of supply of electric power |
| CN107565148A (en) * | 2017-08-25 | 2018-01-09 | 北京建筑大学 | A kind of fuel cell water logging detection and failture evacuation system and its method of work |
| CN108550878A (en) * | 2018-04-08 | 2018-09-18 | 江西优特汽车技术有限公司 | A kind of hydrogen fuel cell system and its control method |
| CN111261897A (en) * | 2020-01-21 | 2020-06-09 | 沈阳理工大学 | PEM fuel cell power generation device with tail gas energy recovery function |
| CN112448001A (en) * | 2020-11-19 | 2021-03-05 | 山东交通学院 | Multifunctional fuel cell power supply equipment |
| CN113346109A (en) * | 2021-05-28 | 2021-09-03 | 黄冈格罗夫氢能汽车有限公司 | Fuel cell hydrogen system for power station and control method |
-
2007
- 2007-09-14 CN CNU2007201759927U patent/CN201113548Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102934274A (en) * | 2010-04-20 | 2013-02-13 | 赫利恩 | Device for storing and restoring electrical energy |
| CN102934274B (en) * | 2010-04-20 | 2016-06-08 | 赫利恩 | For storing and recover the equipment of electric energy |
| CN103001264A (en) * | 2011-09-08 | 2013-03-27 | 陈温乐 | Automatic charging device for electric vehicle battery module |
| CN103498763A (en) * | 2013-10-17 | 2014-01-08 | 浙江工商大学 | Energy-storage standby power generating device |
| CN103498763B (en) * | 2013-10-17 | 2016-09-28 | 浙江工商大学 | Energy-storage standby TRT |
| CN105720283A (en) * | 2016-04-07 | 2016-06-29 | 北京建筑大学 | Fuel cell hybrid power system and working method thereof |
| CN106848347A (en) * | 2017-02-14 | 2017-06-13 | 北京东方华氢科技有限公司 | A kind of electric power system and the control method of supply of electric power |
| CN106848347B (en) * | 2017-02-14 | 2020-11-10 | 北京东方华氢科技有限公司 | Power supply system and power supply control method |
| CN107565148A (en) * | 2017-08-25 | 2018-01-09 | 北京建筑大学 | A kind of fuel cell water logging detection and failture evacuation system and its method of work |
| CN108550878A (en) * | 2018-04-08 | 2018-09-18 | 江西优特汽车技术有限公司 | A kind of hydrogen fuel cell system and its control method |
| CN111261897A (en) * | 2020-01-21 | 2020-06-09 | 沈阳理工大学 | PEM fuel cell power generation device with tail gas energy recovery function |
| CN112448001A (en) * | 2020-11-19 | 2021-03-05 | 山东交通学院 | Multifunctional fuel cell power supply equipment |
| CN112448001B (en) * | 2020-11-19 | 2022-02-08 | 山东交通学院 | Multifunctional fuel cell power supply equipment |
| CN113346109A (en) * | 2021-05-28 | 2021-09-03 | 黄冈格罗夫氢能汽车有限公司 | Fuel cell hydrogen system for power station and control method |
| CN113346109B (en) * | 2021-05-28 | 2022-08-19 | 黄冈格罗夫氢能汽车有限公司 | Fuel cell hydrogen system for power station and control method |
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